Fehrite
      Schluter J, Malcherek T, Mihailova B, Rewitzer C, Hochleitner R, Muller D, Gunther A
      Neues Jahrbuch fur Mineralogie, Abhandlungen 197 (2021) 1-10
      Fehrite, MgCu4(SO4)2(OH)6*6H2O, the magnesium analogue of ktenasite from the
      Casualidad mine near Banos de Alhamilla, Almeria, Spain
      Locality: Casualidad mine, Banos de Alhamilla, Almeria, Spain
      _database_code_amcsd 0020965

      CELL PARAMETERS:    5.6062   6.1294  23.8340   90.000   95.290   90.000
      SPACE GROUP: P2_1/c    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    815.511
      Density (g/cm3):      2.827
      MAX. ABS. INTENSITY / VOLUME**2:      53.10147531    
      RIR:      6.117
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.45        100.00       11.8662    0   0   2         2
                14.93         26.05        5.9331    0   0   4         2
                18.18          5.12        4.8809    1   0   2         2
                18.31          7.89        4.8452    0   1   3         4
                20.82          2.46        4.2667   -1   0   4         2
                21.60          4.43        4.1138   -1   1   1         4
                22.48         11.52        3.9554    0   0   6         2
                22.86          1.93        3.8906    1   0   4         2
                23.71          4.61        3.7528    0   1   5         4
                26.39          2.15        3.3776   -1   0   6         2
                27.66          1.66        3.2252   -1   1   5         4
                28.84          1.17        3.0955    1   0   6         2
                30.12          9.77        2.9666    0   0   8         2
                32.07          5.70        2.7912    2   0   0         2
                33.35          1.82        2.6865    1   2   0         4
                33.40          5.17        2.6828   -1   2   1         4
                33.66          4.65        2.6628    2   0   2         2
                33.74          3.26        2.6563    1   2   1         4
                33.88          1.10        2.6456   -1   2   2         4
                34.79          9.86        2.5789   -1   2   3         4
                35.33          1.47        2.5402    2   1   0         4
                36.83          5.50        2.4405    2   0   4         2
                37.69          1.77        2.3865   -2   0   6         2
                37.74          6.60        2.3837   -1   2   5         4
                39.26          3.96        2.2947    1   2   5         4
                41.27          4.23        2.1875    2   0   6         2
                41.97          8.00        2.1526   -1   2   7         4
                42.37          2.31        2.1334   -2   0   8         2
                43.92          2.24        2.0615    1   2   7         4
                46.69          2.37        1.9453    2   0   8         2
                47.21          3.84        1.9251   -1   2   9         4
                49.50          1.40        1.8415    1   2   9         4
                52.89          1.22        1.7310    2   0  10         2
                53.26          2.71        1.7198   -1   2  11         4
                54.32          1.20        1.6888   -2   0  12         2
                55.82          1.58        1.6469    1   2  11         4
                57.79          3.22        1.5954   -3   2   1         4
                58.26          1.77        1.5837   -3   2   3         4
                58.46          1.89        1.5787    3   2   1         4
                59.99          1.36        1.5421   -1   2  13         4
                60.55          1.14        1.5292    0   4   1         4
                60.96          1.58        1.5197    0   4   2         4
                62.52          1.09        1.4857   -3   2   7         4
                62.80          1.62        1.4797    1   2  13         4
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.